components/view_manager/surfaces/surfaces_output_surface.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "components/view_manager/surfaces/surfaces_output_surface.h"
   6
   7 #include "base/bind.h"
   8 #include "cc/output/compositor_frame.h"
   9 #include "cc/output/context_provider.h"
  10 #include "cc/output/output_surface_client.h"
  11 #include "gpu/command_buffer/client/context_support.h"
  12 #include "gpu/command_buffer/client/gles2_interface.h"
  13
  14 namespace surfaces {
  15
  16 DirectOutputSurface::DirectOutputSurface(
  17     const scoped_refptr<cc::ContextProvider>& context_provider)
  18     : cc::OutputSurface(context_provider), weak_ptr_factory_(this) {
  19 }
  20
  21 DirectOutputSurface::~DirectOutputSurface() {
  22 }
  23
  24 void DirectOutputSurface::SwapBuffers(cc::CompositorFrame* frame) {
  25   DCHECK(context_provider_.get());
  26   DCHECK(frame->gl_frame_data);
  27   if (frame->gl_frame_data->sub_buffer_rect ==
  28       gfx::Rect(frame->gl_frame_data->size)) {
  29     context_provider_->ContextSupport()->Swap();
  30   } else {
  31     context_provider_->ContextSupport()->PartialSwapBuffers(
  32         frame->gl_frame_data->sub_buffer_rect);
  33   }
  34   uint32_t sync_point =
  35       context_provider_->ContextGL()->InsertSyncPointCHROMIUM();
  36   context_provider_->ContextSupport()->SignalSyncPoint(
  37       sync_point, base::Bind(&OutputSurface::OnSwapBuffersComplete,
  38                              weak_ptr_factory_.GetWeakPtr()));
  39   client_->DidSwapBuffers();
  40 }
  41
  42 }  // namespace surfaces